This book is excellent. It's exciting, romance and chock full of action. Ward is a wonderful character. A slightly stuffy academic with hidden depths, Ward is a reluctant but noble individual called upon to stay with Celia until she can discover her murderer.
If Ward is incredible, Celia matches him. She's no fainting violet, but a cool, calculating assassin, who leads Ward through parts of the city that he certainly doesn't want to go.
The romance isn't insta-love which is a definite plus. Despite the acknowledgment of attraction, Ward cannot get past the fact that Celia is dead and Celia is suspicious of Ward's motives.
I cannot recommend this book enough. It's got brilliant characters, a fast paced plot and buckets of fun.